direct media option is no.
Output of vi /etc/asterisk/sip_general_additional.conf
vmexten=*97
context=from-sip-external
callerid=Unknown
notifyringing=yes
notifyhold=yes
tos_sip=cs3
tos_audio=ef
tos_video=af41
alwaysauthreject=yes
useragent=FPBX-13.0.99(13.8.0)
disallow=all
allow=alaw
allow=ulaw
allow=gsm
allow=g726
rtpend=20000
callevents=no
rtpstart=10000
bindport=5061
bindaddr=0.0.0.0
jbenable=no
registerattempts=0
notifyringing=yes
registertimeout=20
allowguest=yes
rtpholdtimeout=300
rtpkeepalive=0
rtptimeout=30
srvlookup=no
notifyhold=yes
canreinvite=no
checkmwi=10
defaultexpiry=120
videosupport=no
g726nonstandard=no
maxcallbitrate=384
maxexpiry=3600
minexpiry=60
nat=force_rport,comedia
ALLOW_SIP_ANON=no
localnet=192.168.150.0/255.255.255.0
Output:
testCLI> rtp set debug ip 10.0.0.101
RTP Debugging Enabled for address: 10.0.0.101:0
testCLI> rtp set debug ip 192.168.150.100
RTP Debugging Enabled for address: 192.168.150.100:0
testCLI>
testCLI>
testCLI>
testCLI>
test*CLI>
Got RTP packet from 192.168.150.100:10000 (type 08, seq 023358, ts 80164980, len 000160)
Got RTP packet from 192.168.150.100:10000 (type 08, seq 023359, ts 80165140, len 000160)
Got RTP packet from 192.168.150.100:10000 (type 08, seq 023360, ts 80165300, len 000160)
Got RTP packet from 192.168.150.100:10000 (type 08, seq 023361, ts 80165460, len 000160)
Got RTP packet from 192.168.150.100:10000 (type 08, seq 023362, ts 80165620, len 000160)
Got RTP packet from 192.168.150.100:10000 (type 08, seq 023363, ts 80165780, len 000160)